CA1284459C - I-t-h pipe cutting tool - Google Patents
I-t-h pipe cutting toolInfo
- Publication number
- CA1284459C CA1284459C CA 535380 CA535380A CA1284459C CA 1284459 C CA1284459 C CA 1284459C CA 535380 CA535380 CA 535380 CA 535380 A CA535380 A CA 535380A CA 1284459 C CA1284459 C CA 1284459C
- Authority
- CA
- Canada
- Prior art keywords
- tool according
- rotary apparatus
- pipe
- rotary
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012190 activator Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005422 blasting Methods 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/12—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
- B23D45/128—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes with the tool introduced into the tubes and cutting from the inside outwards
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/384—By tool inside hollow work
- Y10T83/391—With means to position tool[s] for cutting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/384—By tool inside hollow work
- Y10T83/394—One tool having unidirectional rotary motion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9372—Rotatable type
- Y10T83/9403—Disc type
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Surgical Instruments (AREA)
- Sawing (AREA)
Abstract
I-T-H PIPE CUTTING TOOL
ABSTRACT OF THE DISCLOSURE
A pipe cutting tool especially adapted to cut the interior of in-the-hole (I-T-H) drill pipe to allow subsequent removal of the pipe above the cut. Due to blasting damage, long sections of I-T-H
pipe, otherwise in good condition, cannot be removed because the damaged section prevents the removal of the entire drill string. The tool is adapted to receive power from an external source and includes a frame, a pivoted motor and cutter, and an actuator for pivoting the motor.
ABSTRACT OF THE DISCLOSURE
A pipe cutting tool especially adapted to cut the interior of in-the-hole (I-T-H) drill pipe to allow subsequent removal of the pipe above the cut. Due to blasting damage, long sections of I-T-H
pipe, otherwise in good condition, cannot be removed because the damaged section prevents the removal of the entire drill string. The tool is adapted to receive power from an external source and includes a frame, a pivoted motor and cutter, and an actuator for pivoting the motor.
Description
~28L~L~L59 _T-H PIPE CUTTING TOOL
TPCHNICAL PIELD
The instant invention relates to drilllng in general and more particularly to an apparatus adapted to retrieve valuable in-the-hole ("I-T-H") drill string components otherwise normally left abandoned in a hole.
BACKGROUND ART
As a result of blasting operations, I-T-H drill string components (usually pipe) are frequently damaged and, as a consequence, become stuck in the drill hole. Depending on the length of the pipe, considerable economic losses may be experienced when the entire drill string cannot be retrieved simply because a small portion has become stuck. It i8 difficult and sometlmes impossible to uncouple drill pipe ~oints above the damaged section at any ~ B 1S appreciable depth. Assignee lo~ses several $100,000 a year in ." abandoned but otherwise good drill pipe.
' ~p ~2~ 9 There have been attempts to wrestle with this problem.
Pipe cutters and perforators of various descriptions have been de~ised. Principally, a cutter of some description it utilized.
Although perhaps effective for conventional pipe cutting ope~rations and on the surface, they are unwieldy when applied to I-T-H pipe and inapplicable at great depths.
Representative designs may be found in U.S. Patents 514,985; 669,983; 1,088,135; 4,220,201; 4,307,512; 4,527,511;
4,574,672; German Auslegeschrift 1,136,956; German Patentschrift 342,498 and Russian 605,934.
Clearly an apparatus especially addressed to the unique demands of the retrieval of non-damaged I-T-H pipe is desirable.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a pipe cutting tool, the tool adapted for insertion into pipe and comprising a support member having a proximal end and a distal end, a rotary apparatus pivotally attached to the proximal end of t~le ~upport member, a cutting member affixed to the rotary apparatu~, actuatlng mean~ for pivoting the motor to cause the cuttlng member to contact the plpe, mean~ for energizing the rotary member, and means for energizing the actuating means.
BRIEF DESCRIPTION OF TH~ DRAWING
Figure 1 is an elevation of an embodiment of the invention in partial cross section.
Figure 2 i5 similar to the view shown in Figure 1.
PREFERRED MODE FOR CARRYING OUT THE INVENTION
Referring to Figure 1 and Figure 2, there is shown pipe cutting tool 10 disposed within an I-T-H drill string 12.
Although the ensuing discusslon relates primarily to drilling applications, it will be appreclated that the instant invention may be utilized for other tube cutting applications as well.
~2~ 59 Figure 1 depicts the tool 10 as it is being inserted into the drill string 12 whereas Figure 2 shows the tool lO after pipe 14, comprising a portion of the drill string 12, has been cut.
The drill string 12, as depicted, includes pipes 14 and 16.
The union between the two pipes, as per conventional drilling practice, is accomplished by pin end 18 threadably engaging box end 20. Depression 22 represents a wrenching slot. Assume for the ensuing discussion that a portion of the drill string 12 is damaged downstream the pipe 14 and it is necessary to cut the pipe 14 in order to free the remaining upstream undamaged portions of the drill string.
The cutter 10 is preferably pneumatically driven to take advantage of the commonly available pneumatic sources of supply that are ubiquitous in surface and underground excavations. The cutter 10 includes a high speed motor 24 of relatively small dimension.
Favorable results have been experienced with a Cleco (trademark) pencil grinder model 15GEL180WC. It rotates up to about 18,000 revolutions per mlnute, operates up to gO pounds per square inch gauge (621 kPa~, and generates about 1.0 horsepower (746 watts).
Attached to the hub 62 of the motor 24 i8 a cutting disc 26, preferably made from Carborundum (trademark) abrasive or any similar material suitable for cutting metal pipe.
The motor 24 is enclosed in an open box frame 28 formed by two parallel side brackets 30 (only one is shown). Reference numeral 64 represents the axis of symmetry of both the tool 10 and the drill string 12. The motor 24 is pivotally mounted at the distal portion of the frame 28 via collar 32. The collar 32 is designed to rotate through arc 34 about pivot 36. The proximal section of the box frame 28 is formed by second collar 38. A stop 58 extends from the box frame 28.
Pneumatic power is supplied to the tool 10 from a conventional source (not shown) at dividing connection 40. High pressure air enters the connection 40 at entrance port 42 and is divided internally into two paths to flow out of exit ports 44 and 46. The exit port 46 supplies, via conduit 48, air pressure to the ` motor 24.
_4_ PC-3l00 Air exiting the exit port 44 is fed into cylinder 50 by conduit 52. The cylinder 50 includes a piston 54, registered to activator 56. The activator 56 is attached to the rear of the motor 24 and, in the embodiment shown, has a slight bend. The piston 54 may be canted slightly away from the axis of symmetry 64 to accommodate the bend in the activator 56.
A frusto-conical centralizer 60, releasably affixed to the hub 62 of the motor 24, permits the tool lO to be fished down the drill string 12 through the various unions to a predetermined depth.
The invention and manner of applying it may be better understood by a brief discussion of the principles underlying the invention.
Upon the determination that a portion of the drill string is damaged and it is desired to remove the string components above lS the damaged section, the tool 10 is inserted into the string until the cutting disc 26 reaches the desired depth. Initially, the centralizer 60 i8 affixed to the hub 62 so as to allow the tool to pas~ through the couplingfi in the strln~. Upon hittlng an ob8truction, the frusto-conical shape of the centralizer 60 will cause the motor 24 to sllghtly pivot out of the way of the obstruction and contlnue to guide the tool 10 to the desired location. The centralizer 60 i8 fiecurely ~ but not permanently, affixed to the hub 62 so that upon activation of the motor 24, the rotation of the hub 62 will throw off the expendable centralizer 60 into the pipe 14.
Figure 1 shows the tool 10 essentially in a neutral or straight position for passage through the string 12 components. A
relatively rigid air supply conduit (not shown) communicating with a pneumatic supply source such as a pump and control valve is connected to the entrance port 42. The combination of the rigidity of the air supply and the centering action of the centralizer 60 permit the tool 10 to be guided to the defiired depth.
For the sake of convenience, mDvement to the right in the Figures indicates greater bore depth whereas movement to the left indicates closer proximity to the fiurface.
Upon attainment of the desired depth, pressurized air is introduced into the connection 40. Air passing through the conduit 48 will activate the motor 24 causing the cutting disc 26 to rotate and the disposal of the centraliæer 60. Simultaneously, the air passing into the cylinder 50 via conduit 52 will cause the piston 54 to extend thereby pushing the activator 56. By virtue of the curved 'i geometry of the activator 56, the motor 24 is caused to rotate about the pivot 36 through the arc 34 and bring the cutting disc 26 into contact with the pipe 14. As long as the pressurized air is supplied to the tool 10, the motor 24 will assume the cutting position against the pipe 14. See Figure 2. Simultaneously, the tool 10 is slowly rotated 68 by means, not shown, about the axis of symmetry 64 to allow the cutting disc 26 to travel about the interior diameter of the pipe 14.
In a sense, initiation or deletion of the air supply to the components may be likened to a signal as well as a source of power.
That is, when the air supply is turned on, the air will signal the motor 24 and piston 54 to initiate movement.
After the pipe 14 has been cut along line 66, the air pressure source is shut off. Due to weight and the mounted blas orientation of the motor 24 within the box frame 28, the motor 24 will essentially return to its neutral, straight position coincident with the axis of symmetry 64 within the pipe 14 so as to enable it to be removed without any difficulty. The stop 58 prevents the tool 10 from pivoting too extensively in the opposite direction. In the event that the tool 10 is utilized in a direction other than down, a spring (not shown) may be employed to bias the motor 24 in the neutral, straight position.
Although pressurized air is the preferable power supply, it shall be apparent that the tool 10 may be alternatively powered and signalled by electrical or hydraulic means. Instead of the air motor 24, an electrical or hydraulic motor may be utilized. Similarly, the air cylinder 50 may be replaced with a hydraulic cylinder or electrical servomotor and the appropriate controls. However, for most applications and especially for I-T-H applicatlons, pneumatic power is preferred since it is relatively easy to harness and supply.
In any event, after the pipe 14 i8 cut above the damaged section, the remainder of the drill string 12 may be removed by conventional means and methods, such as a jack, etc.
_iL;~
Prototype designs incorporating the instant invention have helped retrieve about $182,000 of I-T-H drill pipe annually. This represents a large cost savings and the retrieval of an otherwise wasted resource.
S While in accordance with the provisions of the statute, there is illustrated and described herein specific embodiments of the invention, those skilled in the art will understand that changes may be made in the form of the invention covered by the claims and that certain features of the invention may sometimes be used to advantage without a corresponding use of the other features.
TPCHNICAL PIELD
The instant invention relates to drilllng in general and more particularly to an apparatus adapted to retrieve valuable in-the-hole ("I-T-H") drill string components otherwise normally left abandoned in a hole.
BACKGROUND ART
As a result of blasting operations, I-T-H drill string components (usually pipe) are frequently damaged and, as a consequence, become stuck in the drill hole. Depending on the length of the pipe, considerable economic losses may be experienced when the entire drill string cannot be retrieved simply because a small portion has become stuck. It i8 difficult and sometlmes impossible to uncouple drill pipe ~oints above the damaged section at any ~ B 1S appreciable depth. Assignee lo~ses several $100,000 a year in ." abandoned but otherwise good drill pipe.
' ~p ~2~ 9 There have been attempts to wrestle with this problem.
Pipe cutters and perforators of various descriptions have been de~ised. Principally, a cutter of some description it utilized.
Although perhaps effective for conventional pipe cutting ope~rations and on the surface, they are unwieldy when applied to I-T-H pipe and inapplicable at great depths.
Representative designs may be found in U.S. Patents 514,985; 669,983; 1,088,135; 4,220,201; 4,307,512; 4,527,511;
4,574,672; German Auslegeschrift 1,136,956; German Patentschrift 342,498 and Russian 605,934.
Clearly an apparatus especially addressed to the unique demands of the retrieval of non-damaged I-T-H pipe is desirable.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a pipe cutting tool, the tool adapted for insertion into pipe and comprising a support member having a proximal end and a distal end, a rotary apparatus pivotally attached to the proximal end of t~le ~upport member, a cutting member affixed to the rotary apparatu~, actuatlng mean~ for pivoting the motor to cause the cuttlng member to contact the plpe, mean~ for energizing the rotary member, and means for energizing the actuating means.
BRIEF DESCRIPTION OF TH~ DRAWING
Figure 1 is an elevation of an embodiment of the invention in partial cross section.
Figure 2 i5 similar to the view shown in Figure 1.
PREFERRED MODE FOR CARRYING OUT THE INVENTION
Referring to Figure 1 and Figure 2, there is shown pipe cutting tool 10 disposed within an I-T-H drill string 12.
Although the ensuing discusslon relates primarily to drilling applications, it will be appreclated that the instant invention may be utilized for other tube cutting applications as well.
~2~ 59 Figure 1 depicts the tool 10 as it is being inserted into the drill string 12 whereas Figure 2 shows the tool lO after pipe 14, comprising a portion of the drill string 12, has been cut.
The drill string 12, as depicted, includes pipes 14 and 16.
The union between the two pipes, as per conventional drilling practice, is accomplished by pin end 18 threadably engaging box end 20. Depression 22 represents a wrenching slot. Assume for the ensuing discussion that a portion of the drill string 12 is damaged downstream the pipe 14 and it is necessary to cut the pipe 14 in order to free the remaining upstream undamaged portions of the drill string.
The cutter 10 is preferably pneumatically driven to take advantage of the commonly available pneumatic sources of supply that are ubiquitous in surface and underground excavations. The cutter 10 includes a high speed motor 24 of relatively small dimension.
Favorable results have been experienced with a Cleco (trademark) pencil grinder model 15GEL180WC. It rotates up to about 18,000 revolutions per mlnute, operates up to gO pounds per square inch gauge (621 kPa~, and generates about 1.0 horsepower (746 watts).
Attached to the hub 62 of the motor 24 i8 a cutting disc 26, preferably made from Carborundum (trademark) abrasive or any similar material suitable for cutting metal pipe.
The motor 24 is enclosed in an open box frame 28 formed by two parallel side brackets 30 (only one is shown). Reference numeral 64 represents the axis of symmetry of both the tool 10 and the drill string 12. The motor 24 is pivotally mounted at the distal portion of the frame 28 via collar 32. The collar 32 is designed to rotate through arc 34 about pivot 36. The proximal section of the box frame 28 is formed by second collar 38. A stop 58 extends from the box frame 28.
Pneumatic power is supplied to the tool 10 from a conventional source (not shown) at dividing connection 40. High pressure air enters the connection 40 at entrance port 42 and is divided internally into two paths to flow out of exit ports 44 and 46. The exit port 46 supplies, via conduit 48, air pressure to the ` motor 24.
_4_ PC-3l00 Air exiting the exit port 44 is fed into cylinder 50 by conduit 52. The cylinder 50 includes a piston 54, registered to activator 56. The activator 56 is attached to the rear of the motor 24 and, in the embodiment shown, has a slight bend. The piston 54 may be canted slightly away from the axis of symmetry 64 to accommodate the bend in the activator 56.
A frusto-conical centralizer 60, releasably affixed to the hub 62 of the motor 24, permits the tool lO to be fished down the drill string 12 through the various unions to a predetermined depth.
The invention and manner of applying it may be better understood by a brief discussion of the principles underlying the invention.
Upon the determination that a portion of the drill string is damaged and it is desired to remove the string components above lS the damaged section, the tool 10 is inserted into the string until the cutting disc 26 reaches the desired depth. Initially, the centralizer 60 i8 affixed to the hub 62 so as to allow the tool to pas~ through the couplingfi in the strln~. Upon hittlng an ob8truction, the frusto-conical shape of the centralizer 60 will cause the motor 24 to sllghtly pivot out of the way of the obstruction and contlnue to guide the tool 10 to the desired location. The centralizer 60 i8 fiecurely ~ but not permanently, affixed to the hub 62 so that upon activation of the motor 24, the rotation of the hub 62 will throw off the expendable centralizer 60 into the pipe 14.
Figure 1 shows the tool 10 essentially in a neutral or straight position for passage through the string 12 components. A
relatively rigid air supply conduit (not shown) communicating with a pneumatic supply source such as a pump and control valve is connected to the entrance port 42. The combination of the rigidity of the air supply and the centering action of the centralizer 60 permit the tool 10 to be guided to the defiired depth.
For the sake of convenience, mDvement to the right in the Figures indicates greater bore depth whereas movement to the left indicates closer proximity to the fiurface.
Upon attainment of the desired depth, pressurized air is introduced into the connection 40. Air passing through the conduit 48 will activate the motor 24 causing the cutting disc 26 to rotate and the disposal of the centraliæer 60. Simultaneously, the air passing into the cylinder 50 via conduit 52 will cause the piston 54 to extend thereby pushing the activator 56. By virtue of the curved 'i geometry of the activator 56, the motor 24 is caused to rotate about the pivot 36 through the arc 34 and bring the cutting disc 26 into contact with the pipe 14. As long as the pressurized air is supplied to the tool 10, the motor 24 will assume the cutting position against the pipe 14. See Figure 2. Simultaneously, the tool 10 is slowly rotated 68 by means, not shown, about the axis of symmetry 64 to allow the cutting disc 26 to travel about the interior diameter of the pipe 14.
In a sense, initiation or deletion of the air supply to the components may be likened to a signal as well as a source of power.
That is, when the air supply is turned on, the air will signal the motor 24 and piston 54 to initiate movement.
After the pipe 14 has been cut along line 66, the air pressure source is shut off. Due to weight and the mounted blas orientation of the motor 24 within the box frame 28, the motor 24 will essentially return to its neutral, straight position coincident with the axis of symmetry 64 within the pipe 14 so as to enable it to be removed without any difficulty. The stop 58 prevents the tool 10 from pivoting too extensively in the opposite direction. In the event that the tool 10 is utilized in a direction other than down, a spring (not shown) may be employed to bias the motor 24 in the neutral, straight position.
Although pressurized air is the preferable power supply, it shall be apparent that the tool 10 may be alternatively powered and signalled by electrical or hydraulic means. Instead of the air motor 24, an electrical or hydraulic motor may be utilized. Similarly, the air cylinder 50 may be replaced with a hydraulic cylinder or electrical servomotor and the appropriate controls. However, for most applications and especially for I-T-H applicatlons, pneumatic power is preferred since it is relatively easy to harness and supply.
In any event, after the pipe 14 i8 cut above the damaged section, the remainder of the drill string 12 may be removed by conventional means and methods, such as a jack, etc.
_iL;~
Prototype designs incorporating the instant invention have helped retrieve about $182,000 of I-T-H drill pipe annually. This represents a large cost savings and the retrieval of an otherwise wasted resource.
S While in accordance with the provisions of the statute, there is illustrated and described herein specific embodiments of the invention, those skilled in the art will understand that changes may be made in the form of the invention covered by the claims and that certain features of the invention may sometimes be used to advantage without a corresponding use of the other features.
Claims (17)
1. A pipe cutting tool, the tool adapted for insertion into pipe and comprising a support member having a proximal end and a distal end, a rotary apparatus pivotally attached to the proximal end of the support member, a cutting member affixed to the rotary apparatus, actuating means for pivoting the motor to cause the cutting member to contact the pipe, means for energizing the rotary member, and means for energizing the actuating means.
2. The tool according to claim 1 including means for accepting a pneumatic power supply.
3. The tool according to claim 1 including reciprocating means movable in response to the application of a signal and the reciprocating means communicating with the rotary apparatus.
4. The tool according to claim 3 wherein an activator communicates with the reciprocating means and the rotary apparatus.
5. The tool according to claim 4 wherein the activator includes a rod affixed to the rotary apparatus, the rod and rotary apparatus configured to cause the rotary apparatus to pivot with respect to the support member.
6. The tool according to claim 3 wherein the reciprocating means includes a piston.
7. The tool according to claim 1 wherein a power supply connection communicates with the actuating means and the rotary member.
8. The tool according to claim 7 wherein the power supply connection simultaneously supplies pneumatic power to the actuating means and the rotary apparatus.
9. The tool according to claim 1 wherein a centralizer is affixed to the rotary apparatus.
10. The tool according to claim 1 wherein the cutting member is a disc.
11. The tool according to claim 1 wherein the rotary apparatus is a motor.
12. The tool according to claim 1 wherein the support member includes a frame, the distal end of the frame supporting a connection, the actuating means communicating with the connection, the rotary apparatus communicating with the connection, the rotary apparatus movably affiliated with the actuating means, the rotary means pivotally affixed to the proximal end of the frame for movement along an arc, and the connection adapted to receive a source of power.
13. The tool according to claim 1 disposed in an in-the-hole pipe.
14. The tool according to claim 1 wherein a flexible conduit communicates between the distal end of the support member and the rotary apparatus.
15. The tool according to claim 1 wherein the rotary apparatus pivots about an arc when the actuating means is activated and assumes a relatively straight orientation when the actuating means is inactivated.
16. The tool according to claim 1 wherein the rotary apparatus is activated upon the receipt of a signal.
17. The tool according to claim 9 wherein the centralizer is adapted to be released upon rotation of the rotary apparatus.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 535380 CA1284459C (en) | 1987-04-23 | 1987-04-23 | I-t-h pipe cutting tool |
| US07/177,432 US4809775A (en) | 1987-04-23 | 1988-04-04 | I-T-H pipe cutting tool |
| BR8801873A BR8801873A (en) | 1987-04-23 | 1988-04-20 | PIPE CUTTING TOOL |
| EP19880303624 EP0288288B1 (en) | 1987-04-23 | 1988-04-21 | I-t-h pipe cutting tool |
| NZ22431888A NZ224318A (en) | 1987-04-23 | 1988-04-21 | Pipe cutting tool for use inside damaged drill string to allow string recovery |
| ES88303624T ES2029882T3 (en) | 1987-04-23 | 1988-04-21 | CUTTING TOOL FOR WELL BOTTOM. |
| DE8888303624T DE3868675D1 (en) | 1987-04-23 | 1988-04-21 | CUTTING TOOL IN THE HOLE. |
| AU15044/88A AU598661B2 (en) | 1987-04-23 | 1988-04-21 | I-T-H Pipe cutting tool |
| JP63100020A JPS63283812A (en) | 1987-04-23 | 1988-04-22 | Mine pipe cutting tool |
| FI881895A FI88743C (en) | 1987-04-23 | 1988-04-22 | Roerkapningsverktyg |
| GR920400666T GR3004304T3 (en) | 1987-04-23 | 1992-04-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 535380 CA1284459C (en) | 1987-04-23 | 1987-04-23 | I-t-h pipe cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1284459C true CA1284459C (en) | 1991-05-28 |
Family
ID=4135483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 535380 Expired - Fee Related CA1284459C (en) | 1987-04-23 | 1987-04-23 | I-t-h pipe cutting tool |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4809775A (en) |
| EP (1) | EP0288288B1 (en) |
| JP (1) | JPS63283812A (en) |
| AU (1) | AU598661B2 (en) |
| BR (1) | BR8801873A (en) |
| CA (1) | CA1284459C (en) |
| DE (1) | DE3868675D1 (en) |
| ES (1) | ES2029882T3 (en) |
| FI (1) | FI88743C (en) |
| GR (1) | GR3004304T3 (en) |
| NZ (1) | NZ224318A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5431220A (en) * | 1994-03-24 | 1995-07-11 | Smith International, Inc. | Whipstock starter mill assembly |
| US6629565B2 (en) | 2000-07-24 | 2003-10-07 | Smith International, Inc. | Abandonment and retrieval apparatus and method |
| US6626074B1 (en) | 2002-05-14 | 2003-09-30 | Theodore D. Wheeler | Down hole pipe and casing cutter |
| GB0226725D0 (en) * | 2002-11-15 | 2002-12-24 | Bp Exploration Operating | method |
| US7644763B2 (en) * | 2007-03-26 | 2010-01-12 | Baker Hughes Incorporated | Downhole cutting tool and method |
| US7574807B1 (en) * | 2007-04-19 | 2009-08-18 | Holelocking Enterprises Llc | Internal pipe cutter |
| US9759030B2 (en) | 2008-06-14 | 2017-09-12 | Tetra Applied Technologies, Llc | Method and apparatus for controlled or programmable cutting of multiple nested tubulars |
| US7823632B2 (en) * | 2008-06-14 | 2010-11-02 | Completion Technologies, Inc. | Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars |
| DE102009057115A1 (en) * | 2009-12-04 | 2011-06-09 | Autech Gmbh | Pipe cutting method and device |
| WO2012025816A2 (en) * | 2010-08-24 | 2012-03-01 | Stanislav Tolstihin | Device for drilling through a formation |
| US20140000428A1 (en) * | 2012-06-29 | 2014-01-02 | Baker Hughes Incorporated | Self-Lubricating Saw Blade Assembly with Debris Removal Paths |
| WO2016011085A1 (en) | 2014-07-14 | 2016-01-21 | Aarbakke Innovation A.S. | Wellbore intervention tool for penetrating obstructions in a wellbore |
| GB2548104A (en) * | 2016-03-07 | 2017-09-13 | Shanghai Hengxu Mat Co Ltd | Tubular cutting device |
| KR101957956B1 (en) * | 2016-05-31 | 2019-03-14 | (주)엠알이노베이션 | Injection equipment for manufacture of needleless injection syringe |
| CN106825735B (en) * | 2017-03-14 | 2019-03-19 | 湖北正浩建设集团有限公司 | A kind of cutting method of pipe laying cutting machine |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US514985A (en) * | 1894-02-20 | Boiler-flue cutter | ||
| DE342498C (en) * | ||||
| US669983A (en) * | 1900-06-30 | 1901-03-19 | Otto H Ewest | Pipe-cutting tool. |
| US1088135A (en) * | 1911-11-13 | 1914-02-24 | Robert Thomas Fagan | Welll-saw. |
| US1392192A (en) * | 1920-06-22 | 1921-09-27 | George W Miller | Pipe-cutter |
| US2534858A (en) * | 1946-06-08 | 1950-12-19 | Guy P Ellis | Pipe cutter |
| US2942092A (en) * | 1959-02-27 | 1960-06-21 | Fred W Cammann | Internal tube cutter |
| DE1136956B (en) * | 1960-03-10 | 1962-09-27 | Rheinische Braunkohlenw Ag | Device for cutting well pipes, in particular for dewatering a coal field |
| FR1465588A (en) * | 1965-11-30 | 1967-01-13 | Commissariat Energie Atomique | Machine for machining the inner surface of a tube |
| SU605934A1 (en) * | 1973-09-26 | 1978-05-05 | Leonov Mikhail D | Device for cutting pipes in well |
| US4106561A (en) * | 1977-05-12 | 1978-08-15 | Jerome Robert J | Well casing perforator |
| US4220201A (en) * | 1979-02-21 | 1980-09-02 | Service Equipment Design Co., Inc. | Casing perforator |
| US4307512A (en) * | 1980-08-20 | 1981-12-29 | Phillips Herbert H | Rotary wand with attached circular saw blade |
| US4524511A (en) * | 1983-02-28 | 1985-06-25 | Remcut International Inc. | Adjustable interior pipe cutter |
| DE3341424C2 (en) * | 1983-11-14 | 1986-03-13 | Tremag Trennmaschinen-Gesellschaft mbH, 4100 Duisburg | Drive device |
| GB8407707D0 (en) * | 1984-03-24 | 1984-05-02 | Edgealpha Ltd | Cutters |
| US4601223A (en) * | 1984-07-16 | 1986-07-22 | Westinghouse Electric Corp. | Flail tube cutter |
-
1987
- 1987-04-23 CA CA 535380 patent/CA1284459C/en not_active Expired - Fee Related
-
1988
- 1988-04-04 US US07/177,432 patent/US4809775A/en not_active Expired - Fee Related
- 1988-04-20 BR BR8801873A patent/BR8801873A/en not_active IP Right Cessation
- 1988-04-21 ES ES88303624T patent/ES2029882T3/en not_active Expired - Lifetime
- 1988-04-21 DE DE8888303624T patent/DE3868675D1/en not_active Expired - Fee Related
- 1988-04-21 EP EP19880303624 patent/EP0288288B1/en not_active Expired - Lifetime
- 1988-04-21 AU AU15044/88A patent/AU598661B2/en not_active Ceased
- 1988-04-21 NZ NZ22431888A patent/NZ224318A/en unknown
- 1988-04-22 JP JP63100020A patent/JPS63283812A/en active Granted
- 1988-04-22 FI FI881895A patent/FI88743C/en not_active IP Right Cessation
-
1992
- 1992-04-08 GR GR920400666T patent/GR3004304T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4809775A (en) | 1989-03-07 |
| FI881895A (en) | 1988-10-24 |
| JPS63283812A (en) | 1988-11-21 |
| FI88743C (en) | 1993-06-28 |
| JPH0478406B2 (en) | 1992-12-11 |
| GR3004304T3 (en) | 1993-03-31 |
| NZ224318A (en) | 1990-05-28 |
| FI88743B (en) | 1993-03-15 |
| FI881895A0 (en) | 1988-04-22 |
| EP0288288B1 (en) | 1992-03-04 |
| BR8801873A (en) | 1989-11-14 |
| AU1504488A (en) | 1988-10-27 |
| EP0288288A2 (en) | 1988-10-26 |
| DE3868675D1 (en) | 1992-04-09 |
| EP0288288A3 (en) | 1989-07-19 |
| AU598661B2 (en) | 1990-06-28 |
| ES2029882T3 (en) | 1992-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |